A mod that builds upon and tweaks the vanilla experience with a little bit of everything:
crafting, furnaces, resources, turrets, vehicles, enemies and weapons.
[Built for base 2.0 Factorio - Works with Space Age]
In crashsite.lua (obviously) change the generator's usage_priority to primary-output instead of tertiary that's it.
It's such a simple fix it almost makes me think you intentionally chose this behavior, but that'd be silly.
...right?